Weekday-weekend Differences of Urban Climates

Part 2: Detection of Temperature Differences for Medium-and Small-sized Sities

Abstract

Weekday-weekend differences of air temperature in cities in Japan are examined by the use of data covering a nine-year period. 121 cities are classified into five groups according to their populations. The temperature is found to be lower on Sundays than on weekdays for all the groups, including the group which consists of cities with population of 30000 to 100000. The relation between weekday-Sunday temperature difference and population roughly agrees with what is expected from a simple advective model. On the other hand, relatively large temperature differences are found for cities in Hokkaido in winter.